History: North Star sour cherries were created by the University of Minnesota as part of an effort to create varieties that are more resistant to the cold. They were introduced in 1950 and recently have been growing in popularity as a backyard variety.
Why We Grow It: North Star is a Morello sour cherry with deep red skin and dark meaty flesh and dark juice. Best of all, it has an excellent flavour. The trees have a compact and weeping growth habit, making them an attractive addition to your yard whether in bloom in spring or bearing fruit in the summer. They are also self-pollinating, very hardy, and resistant to leaf spot and brown rot.
Canadian Hardiness Zone: 3
Soil Preference: Sandy loam, loam, clay loam. Prefers average to moist conditions with well-drained soils, avoid planting anywhere that floods for more than two weeks in the spring.
Growth Habits and Disease Resistance: Cold hardy, compact and weeping growth habit, produces heavy crops. Resistant to brown rot and bacterial leaf spot.
Sun/Shade: Full sun (approx. 8-10 hours of sun daily)
Pollination: Self-pollinating, this variety will produce fruit without a cherry tree of a different variety but will produce more and better fruit if one is present. Sweet and Sour cherries cannot be relied upon to pollinate each other.
Flowering Time: Late
Ripens: Late July
Storage: Keeps about a week in the fridge.
Recommended Use: Fresh eating, baking
Size including roots:
- 1m+ Whip grade: 100cm+
- Branched grade: 100 cm+ with 3 or more branches, 30 cm or more
- <1m Whip grade: less than 100 cm